· receptor activity
· transmembrane signaling receptor activity
· extracellular matrix structural constituent
· protein binding
· zinc ion binding
· coreceptor activity
· enzyme binding
· protein kinase binding
· MHC class II protein binding

· endoplasmic reticulum lumen
· endoplasmic reticulum membrane
· plasma membrane
· external side of plasma membrane
· integral to membrane
· T cell receptor complex

· induction by virus of host cell-cell fusion
· immune response
· cell adhesion
· signal transduction
· cell surface receptor signaling pathway
· enzyme linked receptor protein signaling pathway
· transmembrane receptor protein tyrosine kinase signaling pathway
· viral reproduction
· viral reproductive process
· T cell differentiation
· entry into host cell
· T cell costimulation
· maintenance of protein location in cell
· T cell selection
· positive regulation of interleukin-2 biosynthetic process
· innate immune response
· protein palmitoleylation
· positive regulation of protein kinase activity
· regulation of defense response to virus by virus
· positive regulation of peptidyl-tyrosine phosphorylation
· defense response to Gram-negative bacterium
· positive regulation of calcium-mediated signaling
· T cell receptor signaling pathway